Staying completely anonymous in the modern world is nearly impossible. I'm sure CIA, FBI and all other "three letter agencies" know who Satoshi was, who Bitcoin developers were/are etc. Anonymity doesn't exist, it's only a dream. If you start going against the system, you will be identified and tracked asap.
Tracked, yes. But to be suppressed, is much harder, especially in a decentralized setting.
I mean, we have the internet. So do they, but they only use it for collecting data (espionage and infiltration activities are restricted to what they call "important" cases that likely some other agency knows about as well).
With the internet, you become unstoppable at sharing stuff.